I am sorry, I never used this before. I have seen Nandrolone, (Deca Durabolin) from Organon crystalize after my old training partener stuck it in the fridge for a month. I have also seen shitty underground Prop fall out of solution and crystalize too. Things will fall out of solution just like kool-aid with too much sugar. Temp effects solubilty so Lower temperatures will lower solubility so yes, heating it like the other bros suggest will work (but this will not solve the problem...since it is a only temporary, but if you are using this rather quickly that may be okay..it it happens again, just re-heat and all is good)...If you want to correct the problemm, you will need more of a carrier like PEG or (I hate saying this but).... add a solvent like you mentioned in the beginning...BB or BA ...not sure what was used in yours just don't go overboard or you will not look forward to injection day if too much solvent is in the mix......it hurts!